Which of the following is an invalid Cisco Secure Intrusion Detection System function?

A.
Cisco Secure Intrusion Detection System sets off an alarm when certain user-configurable strings are matched.

B.
Cisco Secure Intrusion Detection System sends e-mail messages at particular alarm levels via eventd.

C.
Cisco Secure Intrusion Detection System performs a traceroute to the intruding system.

D.
Cisco Secure Intrusion Detection System sends a TCP reset to the intruder when operating in packet sniffing mode.